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Australian Biological Resources Study

Checklist of the Lichens of Australia and its Island Territories
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References
Pertusaria leucostigma Müll.Arg.
  Flora 67: 462 (1884)
T: Cunninghams Gap, Qld, 1883, C.Hartmann s.n.; holo: G.
  Thallus pale olive-green, coarsely cracked and areolate, somewhat wrinkled, minutely tuberculate and dull. Soredia and isidia absent. Apothecia conspicuous, verruciform, scattered, rarely confluent, slightly flattened-hemispherical, not constricted at the base, 1.0–1.5 mm diam. Ostioles inconspicuous, initially pale, becoming darker, 1 per verruca. Ascospores 8 per ascus, irregularly uniseriate, subfusiform to ellipsoidal, 75–105 × 30–45 µm. CHEMISTRY: Thallus K–, KC–, C–, Pd–; containing lichexanthone (major) and 2-O-methyl-perlatolic acid (major).
  An endemic, corticolous species in Qld and N.S.W.; often found on Casuarina beside lakes and rivers.  
  Archer (2004b)  

Checklist Index
Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References

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